Finally

src/json.zig

@@ -1,37 +1,50 @@
 const std = @import("std");
 
 const dbg_print = std.debug.print;
+const eql = std.mem.eql;
 
 
-pub fn decode_song_data(allocator: std.mem.Allocator, json_string: []const u8) !void {
-    const parsed = try std.json.parseFromSlice(
-        std.json.Value,
-        allocator,
-        json_string,
-        .{},
-    );
+pub const SongData = struct {
+    track_url: []const u8,
+    track_title: []const u8,
+};
+
+pub fn decode_song_data(allocator: std.mem.Allocator, json_string: []const u8) !SongData {
+    const parsed = try std.json.parseFromSlice(std.json.Value, allocator, json_string, .{});
     defer parsed.deinit();
 
     const json_data = parsed.value;
+    var track_url: ?[]const u8 = null;
+    var track_title: ?[]const u8 = null;
 
     if (json_data == .array) {
         for (json_data.array.items) |item| {
             if (item == .object) {
                 if (item.object.get("OriginalTrackUrl")) |url_value| {
                     if (url_value == .string) {
-                        dbg_print("OriginalTrackUrl: {s}\n", .{url_value.string});
+                        track_url = try allocator.dupe(u8, url_value.string);
                     }
                 }
                 if (item.object.get("title")) |title_value| {
                     if (title_value == .string) {
-                        dbg_print("Title: {s}\n", .{title_value.string});
+                        track_title = try allocator.dupe(u8, title_value.string);
                     }
                 }
             }
         }
     }
+    if (track_url) |url| {
+        if (track_title) |title| {
+            return SongData{
+                .track_url = url,
+                .track_title = title,
+            };
+        }
+    }
+    return error.Unexpected;
 }
 
+
 pub fn decode_album_data() void {
     unreachable;
 }

src/main.zig

@@ -24,8 +24,11 @@ pub fn main() !void {
     const data = try url.fetch(allocator, "https://tidal.401658.xyz/track/?id=286266927&quality=LOSSLESS");
     defer allocator.free(data);
 
-    try json.decode_song_data(allocator, data);
+    const songData = try json.decode_song_data(allocator, data);
 
-    try url.download(allocator, "https://sp-pr-cf.audio.tidal.com/mediatracks/CAEaKwgDEidkYjY2ZWFkZTEwYmRmYjYyZTRiYjRiZmViNmU1YzNkM182MS5tcDQ/0.flac?Expires=1743711930&Signature=PRw1k4gM7m015MdIRZ81Xqn7mvzVBz1I9hpuYrT0lPu6DRvWQpAt2xxMvPCzEWwoFtH7CacZCjY7aeXbHanq6r68SHVkidkC0c1yZu~3Wk5BUri54Vh9sHr9Zcs6OmrtaaJv9XYRqeY9rDOwYykc47MrO6-cTaeW-Fp3UMaw5P243qPd3FZHYMYiKkaQtR791CgAmJ79ihzs8X0sKQrRKOH2jZ1Yy48qAIcyc5oyoKaN7owEPb-EbvS5h~vKXijK8jyb~dwzRZ0~uN3v3yREyBvrFL4~csnawkVL03mFlmPcRVnru96cVBm195j79OUrbYI64BmoC~4gkgSCR35zpQ__&Key-Pair-Id=K14LZCZ9QUI4JL");
+    defer allocator.free(songData.track_url);
+    defer allocator.free(songData.track_title);
+
+    try url.download(allocator, songData.track_url, songData.track_title);
 
 }

src/url.zig

@@ -33,14 +33,16 @@ pub fn fetch(allocator: std.mem.Allocator, url: []const u8) ![]u8 {
 }
 
 
-pub fn download(allocator: std.mem.Allocator, url: []const u8) !void {
+pub fn download(allocator: std.mem.Allocator, url: []const u8, name: []const u8) !void {
     const data = try fetch(allocator, url);
     defer allocator.free(data);
 
     //dbg_print("Success", .{});
+    const file_name = try std.fmt.allocPrint(allocator, "{s}.flac", .{name});
+    defer allocator.free(file_name);
 
     const file = try std.fs.cwd().createFile(
-        "test.flac",
+        file_name,
         .{ .read = true },
     );
     defer file.close();